Ventral root responses of the hemisected amphibian spinal cord to perfused amino acids in the presence of procaine.

Abstract:

:The use of the procaine-blocked hemisected spinal cord preparation to identify the primary action of amino acids and their antagonists on amphibian mononeurones is described. 2 Apart from an anomalous effect of glycine, the responses of frog spinal motoneurones to amino acids were shown to be similar to those of mammalian spinal neurones. 3 In the presence of procaine, gamma-aminobutyrate (GABA), taurine and beta-alanine caused a hyperpolarizing response, measured in ventral roots, whereas L-glutamate and, to a lesser extent, glycine caused depolarization. 4 Picrotoxin and bicuculline specifically blocked ventral root responses to GABA; strychnine blocked responses to taurine and beta-alanine but not responses to L-glutamate, glycine or GABA.

journal_name

Br J Pharmacol

authors

Evans RH,Watkins JC

doi

10.1111/j.1476-5381.1975.tb07427.x

subject

Has Abstract

pub_date

1975-12-01 00:00:00

pages

519-26

issue

4

eissn

0007-1188

issn

1476-5381

journal_volume

55

pub_type

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